Inline FabricationGraf & SonsRotoMetals2Lee Precision
MidSouth Shooters SupplyADvertise hereStainLess Steel MediaTitan Reloading

Donate Now Goal amount for this year: 6000 USD, Received: 3800 USD (63%)
Our Annual server fund drive is going on now! This donation drive helps fund Cast Boolits for an entire year, and helps support our 2nd amendment rights! You can donate by Paypal by clicking the DONATE button. Or by Cash / Check / MO to the address below:

Willy Snyder
PO Box 2732
Pocatello, ID 83206
****Due to overwhelming e-mails, I will be very slow in updating this list. Please bear with me!****


Results 1 to 10 of 10

Thread: Red Dot and mag. Small. Pistol primers,

  1. #1
    Boolit Man
    Join Date
    Jul 2017
    Posts
    81

    Red Dot and mag. Small. Pistol primers,

    I just ran out of regular smal pistol primers tonight and was wandering if i could use magnum SP primers. I am loading 38 spl. with 3.5 grs. Red dot, 158gr frn boolit( 167 gr. out of 50/50 ), out of an LCR 38 spl. Thanks, Bruce

  2. #2
    Boolit Master
    sargenv's Avatar
    Join Date
    Jan 2009
    Location
    Bay Area, California
    Posts
    1,416
    You shouldn't have much of an issue.. you might get a few more fps from the magnums but that 3.5 gr load is on the mild side so it should be just fine. I did a workup with 20 different primers and titegroup and found that there was a difference of about 30 feet/second from low to high velocity wise. This being in 9mm with a 135 gr bullet and 3.6 gr of titegroup. I tested this across 4 platforms (S&W 929, Para LDA 9mm, Ruger P94, & Glock 34).

  3. #3
    Boolit Master rsrocket1's Avatar
    Join Date
    Sep 2010
    Location
    Sacramento, CA
    Posts
    1,036
    It will work fine. You can also use SR primers so long as you haven't done any trigger work to lighten the hammer spring. With mid range loads, I've used SR, SP and SPM primers and found virtually no difference in performance. The primer shortage days and the powder shortage days really helped to teach me what what works "just as well" as in days of plenty.

  4. #4
    Boolit Man
    Join Date
    Jul 2017
    Posts
    81
    Thanks you both. Been waiting for some deffinative answers. Tthe only mods to this sp 101 has been a lighter triger spring and i think a 10# hammer spring. Any way, the hammer spring is the next o e lignter than the original.

  5. #5
    Boolit Master
    Tom W.'s Avatar
    Join Date
    Mar 2005
    Location
    Phenix City, Alabama
    Posts
    2,760
    Aren't Sr primers a bit longer than sp primers? I know I used the sr for the .454, but all I've ever heard is that one is longer than the other. Would that cause the primers to be above the case and perhaps rub on the recoil shield? Just asking.......
    Tom
    μολὼν λαβέ

    Adults are just children with much better toys..

  6. #6
    Boolit Master

    Join Date
    May 2015
    Location
    easternshore of va.
    Posts
    1,636
    Large rifle primers are taller than large pistol primers , but small rifle and small pistol are same size .

  7. #7
    Boolit Master Texas by God's Avatar
    Join Date
    Mar 2016
    Location
    Texas
    Posts
    5,081
    Quote Originally Posted by rsrocket1 View Post
    It will work fine. You can also use SR primers so long as you haven't done any trigger work to lighten the hammer spring. With mid range loads, I've used SR, SP and SPM primers and found virtually no difference in performance. The primer shortage days and the powder shortage days really helped to teach me what what works "just as well" as in days of plenty.
    ^^^^This^^^^

    Sent from my SAMSUNG-SM-G930A using Tapatalk

  8. #8
    Boolit Man
    Join Date
    Jul 2017
    Posts
    81
    Quote Originally Posted by Texas by God View Post
    ^^^^This^^^^

    Sent from my SAMSUNG-SM-G930A using Tapatalk
    I have tne original springs. I will cnange the ham,er spri g back to original spring.

  9. #9
    Boolit Man
    Join Date
    Sep 2015
    Location
    Kansas
    Posts
    102
    During the shortage I discovered this. After that I have been stalking just magnum versions for simplicity. No problems at all with proper load workup

  10. #10
    Boolit Master






    Lloyd Smale's Avatar
    Join Date
    Mar 2005
    Location
    munising Michigan
    Posts
    13,898
    I agree as long as you start mild and work up. What I did when I found myself flush with small pistol mag primers is use them loading 223 ammo. Some internet research (I KNOW FOR WHAT ITS WORTH) showed the at least in the case of cci that there small pistol mag primers and there small rifle standard primers are the same primer in a different box.
    Soldier of God, sixgun junky, Retired electrical lineman. My office was a 100 feet in the air, closer to God the better

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Abbreviations used in Reloading

BP Bronze Point IMR Improved Military Rifle PTD Pointed
BR Bench Rest M Magnum RN Round Nose
BT Boat Tail PL Power-Lokt SP Soft Point
C Compressed Charge PR Primer SPCL Soft Point "Core-Lokt"
HP Hollow Point PSPCL Pointed Soft Point "Core Lokt" C.O.L. Cartridge Overall Length
PSP Pointed Soft Point Spz Spitzer Point SBT Spitzer Boat Tail
LRN Lead Round Nose LWC Lead Wad Cutter LSWC Lead Semi Wad Cutter
GC Gas Check